<?php
namespace Modules\Content\Services;

use Illuminate\Support\Facades\Schema;
use Illuminate\Support\Facades\View;
use Modules\Content\Models\PageContent;
use Throwable;

final class PageRenderer
{
    public function hasComposition(string $pageKey): bool
    {
        try { return Schema::hasTable('page_content') && PageContent::query()->where('page_key',$pageKey)->where('is_enabled',true)->exists(); }
        catch (Throwable) { return false; }
    }

    public function renderRegion(string $pageKey, string $region): string
    {
        if (! $this->hasComposition($pageKey)) return '';

        $placements = PageContent::query()
            ->with('document.type')
            ->where('page_key', $pageKey)
            ->where('region', $region)
            ->where('is_enabled', true)
            ->where(fn($q) => $q->whereNull('starts_at')->orWhere('starts_at','<=',now()))
            ->where(fn($q) => $q->whereNull('ends_at')->orWhere('ends_at','>',now()))
            ->orderBy('sort_order')->get();

        return $placements->map(function (PageContent $placement): string {
            $document = $placement->document;
            if (! $document || ! $document->type || $document->status !== 'published') return '';
            $view = 'stylist-theme-saasland::documents.'.$document->type->renderer;
            if (! View::exists($view)) $view = 'content::documents.unsupported';
            return View::make($view, ['document'=>$document,'data'=>$document->data ?? [],'placement'=>$placement])->render();
        })->implode("\n");
    }
}